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DELL Latitude 5420 Notebook Rugged schematics

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    DELL Latitude 5420 Notebook Rugged schematics

    Hi,

    I'm working on the TPM chip in a Dell Latitude 5420 Rugged. It contains a NPCT754J chip, but I cannot find pin-out for this chip. I have checked the service manual; https://dl.dell.com/topicspdf/latitu...nual_en-us.pdf - but it's not detailed enough to contain this information.

    I've also checked Novoton's own documentation of the chip here; https://csrc.nist.gov/CSRC/media/pro.../140sp3187.pdf and here; https://commoncriteriaportal.org/fil...-2018_61en.pdf - but this also does not contain information about the pin-out.

    Does anyone here have board schematics for this laptop or pin-out specification for the actual TPM chip?

    #2
    Post the motherboard model number

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    1.1.3 Motherboard model number
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      #3
      Seems like the motherboard model number is Y5K-I7-KBL-U42-Y4G

      Click image for larger version  Name:	motherboard_model.jpg Views:	0 Size:	469.3 KB ID:	3509147

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        #4
        Originally posted by Idar Lund View Post
        Seems like the motherboard model number is Y5K-I7-KBL-U42-Y4G
        No it`s not that, probably this. I don`t think the schematic is available at this time.

        Click image for larger version

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Views:	132
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